Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.g2d / src / org / simantics / g2d / elementclass / ImageClass.java

diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/elementclass/ImageClass.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/elementclass/ImageClass.java
new file mode 100644 (file)
index 0000000..419f422
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+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/elementclass/ImageClass.java
@@ -0,0 +1,151 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.g2d.elementclass;\r
+\r
+import java.awt.Shape;\r
+import java.awt.geom.AffineTransform;\r
+import java.awt.geom.Rectangle2D;\r
+\r
+import org.simantics.g2d.element.ElementClass;\r
+import org.simantics.g2d.element.ElementHints;\r
+import org.simantics.g2d.element.ElementUtils;\r
+import org.simantics.g2d.element.IElement;\r
+import org.simantics.g2d.element.SceneGraphNodeKey;\r
+import org.simantics.g2d.element.handler.InternalSize;\r
+import org.simantics.g2d.element.handler.Outline;\r
+import org.simantics.g2d.element.handler.Resize;\r
+import org.simantics.g2d.element.handler.SceneGraph;\r
+import org.simantics.g2d.element.handler.impl.DefaultTransform;\r
+import org.simantics.g2d.image.Image;\r
+import org.simantics.scenegraph.Node;\r
+import org.simantics.scenegraph.g2d.G2DParentNode;\r
+import org.simantics.scenegraph.g2d.IG2DNode;\r
+import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
+\r
+/**\r
+ * See {@link ElementHints}.KEY_IMAGE\r
+ *\r
+ * @author Toni Kalajainen <toni.kalajainen@vtt.fi>\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class ImageClass {\r
+\r
+    public static final ElementClass INSTANCE =\r
+        ElementClass.compile(\r
+                ImageElementHandler.INSTANCE,\r
+                DefaultTransform.INSTANCE\r
+        );\r
+\r
+    public static class ImageElementHandler implements SceneGraph, InternalSize, Resize, Outline {\r
+\r
+        private static final long serialVersionUID = 7980198654721917029L;\r
+\r
+        public static final ImageElementHandler INSTANCE = new ImageElementHandler();\r
+\r
+        public static final Key  KEY_SG_NODE             = new SceneGraphNodeKey(Node.class, "IMAGE_SG_NODE");\r
+\r
+        protected Image getImage(IElement e) {\r
+            Image i = e.getHint(ElementHints.KEY_IMAGE);\r
+            if (i == null)\r
+                throw new IllegalStateException("element " + e + " has no ElementHints.KEY_IMAGE hint");\r
+            return i;\r
+        }\r
+\r
+        protected Key getNodeKey() {\r
+            return KEY_SG_NODE;\r
+        }\r
+\r
+        @Override\r
+        public void init(final IElement e, final G2DParentNode parent) {\r
+            Image i = getImage(e);\r
+            Node node = i.init(parent);\r
+            if (node != null)\r
+                e.setHint(getNodeKey(), node);\r
+            if(node instanceof IG2DNode) {\r
+               IG2DNode n = (IG2DNode)node;\r
+               AffineTransform at = ElementUtils.getTransform(e);\r
+               if(at != null) {\r
+                       n.setTransform(at); // FIXME: not tested..\r
+               }\r
+            }\r
+        }\r
+\r
+        public void cleanup(final IElement e) {\r
+            Node node = e.removeHint(getNodeKey());\r
+            if (node != null)\r
+                node.remove();\r
+        }\r
+\r
+        @Override\r
+        public Rectangle2D getBounds(IElement e, Rectangle2D size) {\r
+            Image i = getImage(e);\r
+            Rectangle2D r = i.getBounds();\r
+            if (size == null)\r
+                size = new Rectangle2D.Double();\r
+            size.setFrame(r);\r
+            return size;\r
+        }\r
+\r
+        @Override\r
+        public Double getFixedAspectRatio(IElement e) {\r
+            Image i = getImage(e);\r
+            Rectangle2D r = i.getBounds();\r
+            return r.getWidth() / r.getHeight();\r
+        }\r
+\r
+        @Override\r
+        public Rectangle2D getMaximumSize(IElement e) {\r
+            Image i = getImage(e);\r
+            return i.getBounds();\r
+        }\r
+\r
+        @Override\r
+        public Rectangle2D getMinimumSize(IElement e) {\r
+            Image i = getImage(e);\r
+            return i.getBounds();\r
+        }\r
+\r
+        @Override\r
+        public void resize(IElement e, Rectangle2D newSize) {\r
+        }\r
+\r
+        @Override\r
+        public Shape getElementShape(IElement e) {\r
+            Image i = getImage(e);\r
+            return i.getOutline();\r
+        }\r
+    }\r
+\r
+\r
+    public static class StaticImageElementHandler extends ImageElementHandler {\r
+        private static final long serialVersionUID = 7691329107125520049L;\r
+\r
+        public static final Key   KEY_SG_NODE      = new SceneGraphNodeKey(Node.class, "STATIC_IMAGE_SG_NODE");\r
+\r
+        private final Image i;\r
+\r
+        public StaticImageElementHandler(Image i) {\r
+            this.i = i;\r
+        }\r
+\r
+        @Override\r
+        protected Image getImage(IElement e) {\r
+            return i;\r
+        }\r
+\r
+        @Override\r
+        protected Key getNodeKey() {\r
+            return KEY_SG_NODE;\r
+        }\r
+    }\r
+\r
+}
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